Well Tempered Lab LTD Symmetrex Tonearm


The Well Tempered Lab LTD Symmetrex tonearm is a highly refined version of Bill Firebaugh’s famous “golf ball” tonearm.

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Brand: Well Tempered Lab Category:


The Well Tempered Lab LTD Symmetrex tonearm is a highly refined version of Bill Firebaugh’s famous “golf ball” tonearm. The Symmetrex tonearm configuration still uses a fully internally damped armtube and precision made golf ball suspended in silicone fluid for perfect damping, with the added advantage of enhanced trackability over even the most torturous groove modulation.

  • 10.5’’ effective length (9″ version available)
  • Fully internally damped armtube
  • Adjustable tonearm damping via silicone fluid bath
  • Simple azimuth adjustment
  • Arm lift / cueing device
  • Effective mass 10 grams

“The Symmetrex tonearm has the unique feature of dynamic tracking. The centre of gravity of the tonearm assembly is well above the rotational pivot of the ball and the ball is immersed in approximately 30% in the damping fluid. When the stylus encounters heavy modulation in the grooves the increased drag causes the tonearm to rotate down thus gently increasing the tracking force maintaining a secure and stable condition for every cartridge.”

William Firebaugh, Chief Engineer

Additional information




Audio Outputs

1 x RCA


10.5" aluminium arm tube with internal damping, Easy azimuth adjustment, Polyester thread suspension providing anti-skate, Silicone fluid damping, Arm lift / cueing device

Effective Mass

10 g

Documents and downloads

LTD tonearm user manual

Frequently Asked Questions

Your Well Tempered Lab LTD Symmetrex Tonearm will normally be delivered in 2-3 days.

Delivery is free on orders over £100. We deliver anywhere in the UK using premium tracked delivery services from DPD Local, UPS, TNT and Royal Mail.

When you by a product from us, you will have 30 days to decide whether or not you want to keep it. If you decide to return it for any reason, even if you just changed your mind, it will not cost you a penny. Just let us know that you want to return it and we will take care of the rest.

We will agree a collection date with you and send you a pre-paid shipping label for the return trip. You can have full refund or you can try something else instead. It is up to you. All we ask is that you take good care of the product, along with any accessories and packaging, while you are deciding whether or not to keep it.

We accept all major credit and debit cards, including Mastercard, Visa and American Express. We also accept Apple Pay and Google Pay. Payments are securely managed by industry leading payment processor Stripe and protected by SSL encryption. We will not store your card number or other payment information.


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